Missouri Basin River Forecast Center
Water Supply Statement
Issued in cooperation with the Natural
Resources Conservation Service
Issued:  November 15, 2006

PRECIPITATION IN THE MISSOURI BASIN DURING OCTOBER WAS GENERALLY
AVERAGE TO ABOVE AVERAGE.  PRECIPITATION IN MONTANA WAS ABOVE
AVERAGE, WITH AMOUNTS  RANGING FROM 11 PERCENT OF AVERAGE
(0.05 IN.) NEAR CUT BANK, MT TO 405% OF AVERAGE (3.12 IN.) NEAR
BRUSETT, MT.  PRECIPITATION IN WYOMING WAS ABOVE
AVERAGE WITH REPORTS RANGING FROM 17 PERCENT OF AVERAGE
(0.13 IN.) NEAR WAPITI, WY TO 274 PERCENT OF AVERAGE (2.66 IN.)
NEAR MAMMOTH, WY. PRECIPITATION IN NORTHEASTERN COLORADO
WAS ABOVE AVERAGE WITH REPORTS RANGING FROM 45 PERCENT OF
AVERAGE (0.31 IN.) NEAR BRIGGSDALE, CO TO 327 PERCENT OF
AVERAGE (3.07 IN.) NEAR BURLINGTON, CO.

BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI BASIN:

BASIN               AVERAGE PRECIPITATION
MILK ST. MARY             155%
MILK CANADA               168%
LOWER MILK                147%
ABOVE TOSTON              229%
TOSTON TO FT. PECK        207%
UPPER YELLOWSTONE         194%
WIND RIVER                119%
BIGHORN                   119%
LITTLE BIGHORN TONGUE     134%
POWDER                     81%
LOWER YELLOWSTONE         144%
UPPER NORTH PLATTE        159%
LOWER NORTH PLATTE         92%
SOUTH PLATTE MOUNTAINS    214%
SOUTH PLATTE PLAINS       133%

 
October 2006 Basin Mean Precipitation

STORED  WATER IN THE  SOUTH  PLATTE  BASIN AS OF NOVEMBER 1
WAS 72 PERCENT OF  AVERAGE FOR THIS TIME OF THE YEAR.
OF THE FOUR MAJOR IRRIGATION  RESERVOIRS IN MONTANA, LIMA
RESERVOIR HAD 127 PERCENT  AVERAGE  STORAGE; CLARK CANYON WAS
HOLDING 61 PERCENT OF AVERAGE WATER, GIBSON RESERVOIR HAD
36 PERCENT OF AVERAGE STORED WATER AND  FRESNO RESERVOIR
HAD  79 PERCENT  OF AVERAGE STORED WATER.  OF THE THREE
MAJOR HYDROELECTRIC  RESERVOIRS IN MONTANA, CANYON  FERRY
AND FORT PECK HAD  MONTHEND STORAGE IN THE AVERAGE RANGE;
89 AND 59 PERCENT OF AVERAGE WATER, RESPECTIVELY.  BIGHORN
RESERVOIR WAS HOLDING 77 PERCENT OF AVERAGE STORED WATER.

RUNOFF DURING OCTOBER, AS INDICATED BY U.S.  GEOLOGICAL
SURVEY LONG TERM GAGING  STATIONS,  WAS  BELOW  AVERAGE.
THE MARIAS  RIVER NEAR SHELBY,   MONTANA   HAD  42  PERCENT
OF  AVERAGE   RUNOFF. THE YELLOWSTONE  RIVER WAS ESTIMATED TO
HAVE HAD 86  PERCENT  OF AVERAGE  RUNOFF AT CORWIN SPRINGS,
WHILE AT  BILLINGS,  MONTANA RUNOFF WAS 54 PERCENT OF AVERAGE.


 

                          Precipitation Maps

 
  October 2006           WY 2007

                                                              

October 2006 Precipitation Percent of 1971-2000 Average  WY2007 Precipitation as Percent of 1971-2000 Average


October 2006 Basin Mean Precipitation                    WY2007 Basin Mean Precipitation

                                                       

October 2006 MBRFC Basin Mean Precipitation         WY2007 MBRFC Basin Mean Precipitation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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